Summer School 2024 - Low dimensional Topology

Collection Summer School 2024 - Low dimensional Topology

Organisateur(s) Scientific Committee: Greg Kuperberg, Christine Lescop, Gwénaël Massuyeau, Jean-Baptiste Meilhan / Organization Committee: Christine Lescop, Gwénaël Massuyeau, Jean-Baptiste Meilhan
Date(s) 17/06/2024 - 05/07/2024
URL associée https://if-summer2024.sciencesconf.org
00:00:00 / 00:00:00
36 42

On the properties of quantum representations of mapping class groups of surfaces 1

De Renaud Detcherry

The Witten-Reshetikhin-Turaev quantum representations are (families of) projective representations of mapping class groups of surfaces, with striking properties: the Dehn twists have finite image, but the representations have a unitary structure and infinite images. We will give a construction of the SO(3)-variant of WRT representations as part of the TQFTs underlying the SO(3)-Witten-Reshetikihin-Turaev invariants of 3-manifolds. We will discuss two deep theorems about WRT-representations: asymptotic faithfulness and the density of the image. Finally, we will present some results about the AMU conjecture, which explains how pseudo-Anosov mapping classes are detected by quantum representations. We will also give restrictions on the kernel of quantum representations at fixed level.

Informations sur la vidéo

Dernières questions liées sur MathOverflow

Pour poser une question, votre compte Carmin.tv doit être connecté à mathoverflow

Poser une question sur MathOverflow




Inscrivez-vous

  • Mettez des vidéos en favori
  • Ajoutez des vidéos à regarder plus tard &
    conservez votre historique de consultation
  • Commentez avec la communauté
    scientifique
  • Recevez des notifications de mise à jour
    de vos sujets favoris
Donner son avis